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CVE-2022-30600

33
FAUCET Score

CVE-2022-30600 is a critical vulnerability in Moodle and related Fedora/Red Hat Enterprise Linux distributions, where a logic flaw in failed login attempt counting allows attackers to bypass account lockout thresholds. With a CVSS score of 9.8, it presents a high-impact, low-complexity attack vector, potentially leading to full compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.9, < 3.9.14CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
>= 3.10, < 3.10.11CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
>= 3.11, < 3.11.7CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:4.0.0:-:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.03%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0503 is in the 85th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 4.0.1
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.9.14
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.10.11
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 3.11.7

Vendor Advisories (1)

composerGHSA-w37f-pvvx-wcwmcritical

Incorrect Calculation in moodle

May 19, 2022

References

git.moodle.org / gw
PatchVendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OGF35EN5K2R6X3NTY3XPZSJ3UDASMXI6
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/PIMSIRKCFLIC646K4GMUSZU7THOUVPAJ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/QCTWSE3JDMSYL7DPCMXMMJEXZSS6VIA5
moodle.org / mod/forum/discuss.php
Vendor Advisory